You do know that Jay Allen went over the edge and went out of business? Hosed a lot of customers too, but did make an effort to pay those who pestered him back. Last I heard he worked as a clerk at either Autozone or Advance Auto. Been a couple of years now.
Its no secret that Jay Allen pushed pretty much anything from Comp. He got a good deal on their parts and it was an economic marriage. He also pushed out tons of the 838's to his Ford customers. Even repeatedly praised them on another SBF site that he frequented. That was up until about 2010 and he stopped selling parts publicly within a year or so of then.
Comp sells the 838's as their cheap entry level SR lifter for SBF's. They offer a comparable lifter for other manufacturer's engines too still under the Endure-x nameplate. They all have a cast body and use other cost saving measures to keep the price way down below what the premium brand lifters cost. They should be considered throw aways--use a season or 2 and then either have them rebuilt (over half the cost of new lifters) or replace them. Its easy to find tons of reported failures of the Endure-x on the net.
Comp also has an upscale premium line of solid roller lifters under the "Elite" nameplate that use a forged body and better roller bearings. Here is an example: http://www.summitracing.com/parts/cc...view/make/ford
My understanding is that Comp recently introduced a bushed SR lifter, but I have not researched it.
Comp is in business to sell parts and they are basically the Walmart of valve trains-they carry everything, either good or bad. They do not design everything they have and parts are often purchased from outside vendors and rebadged under the Comp nameplate. There are smaller companies that have been in business longer (like Isky and Crower) who still stick to there guns to only offer top-shelf products, which of course cost more to make. That cost must be passed down to the consumer. Our Walmart society would rather purchase something cheaper that they feel will do the same job. Many times the parts will work, but the failure rate will still be more than the smaller specialized outfits who rely on there track records to produce sales, not mass advertisements.
Crower, Moral, and some other manufacturer's have had good success for many years selling expensive premium roller bearing lifters and they both have produced bushing SR's, following Isky's lead. Others manufactures tried bushings before before with limited success, but Isky appears to be the first to produce a reliable SR that works good for the street/strip crowd.